Improvement in spark-extinguishers



G. D. HUNTER. Spark-Extinguisher.

Patented Oct. 28,1879.

Witne sses; Inventor;

' 9 I I Y UNITED STATES PATENT OFFICE.

GEORGE HUNTER, OF BLOOMINGTON, INDIANA.

IMPROVEMENT IN SPARK-EXTINGUI SHERS.

Specification forming part of Letters Patent No. 220,923, dated October 28, 1879; application filed April 19, 1879.

To all whom it may concern:

Be it known that I, GEO. D. HUNTER, of Bloomington, in the county of Monroe and State of Indiana, have invented certain new and useful Improvements in Spark Extinguishers; and I do hereby declare that the following is a full, clear,'and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification, and in which Figure 1 is a one-half cross-section on line or a: in Fig. 2, and half-front view of my improved spark'extinguisher. Fig. 2 is a sectional view on line or w in Fig. 1. Fig. 3 is a broken section on line 2 z in Fig. 1.

Similar letters of reference indicate corresponding parts.

The invention is an improvement in the class of spark-extinguishers made independent from a smoke-stack on the locomotive.

The object. of my invention is to construct a spark-extinguisher using the shelfprinciple, in connection with exhaust1steam, water, or both.

The nature of said improvements I shall now proceed to describe more fully.

In the drawings hereto annexed, A A represent incline shelves or planes to convey the sparks which fallion them onto the drop'shelves B B at each end of the extinguisher.

B B are side drop-shelves, over which are directed jets of exhaust-steam or water, hinged and held to position by the arms b b.

b b are arm-projections on the front side of the drop-shelves B B, extending upward to bear upon or against the incline-shelves A A, to replace and hold the drop shelves B B in position. 1

O O is a lower shelf or shelves, to prevent the sparks from passin gout too readily, checking the sparks or cinders suflicien-tly for the exhaust-steam or water from the port D to play on them.

D DD are connected ports, each having a row of jetholes, through which the exhauststeam or water is discharged for extinguishing and forcing the sparks or cinders through the extinguisher.

cl is an independent port to convey water at .any or all times into the extinguisher, to aid the engine and prevent the drawing of the sparks into the jet-holes into the ports D D D.

F is the front lid, to which are made with or fastened to it the incline-shelves A A and lower shelf or shelves, 0 G, and is fastened in place by nuts on the stud-extension of the four tap-bolts, which fastens the front cover, G, with the extinguish er.

G is the front cover, with an opening for the admittance of the incline shelves A A and the lower shelf or shelves, 0 G, and is also provided with two recesses for receiving a pinion on the front side of the dropshelvesB B, and is fastened independent from the front lid, F.

The extinguisher is connected with the exha'ust-nozzle by a pipe, to convey a portion of the exhaust-steam to the ports D D D and to the smoke-box, which receives the sparks, and which fall from the incline shelves A; A to the drop-shelves B B, and are then carried by the exhaust-steam or water from the ports D D D to the lower shelf or shelves, 0 O, and out.

It will be observed that by this construction. there will be no trouble in cleaning the extin guisher, for should it clog or stop up, caused by a boiler-tube bursting, and an excessive amount of sparks in the smoke-box, it is only necessary to take off the front lid, F. The in cline'shelves A A, the lower shelf or shelves, 0 0, being made fast to it, comes out with it, and the drop-shelves B B, fall as indicated by dotted lines. The front cover, Gr, remains undisturbed.

To replace the lid F, place the incline-shelves AA under the arm-projections b b of the dropshelves B B and raise up to position. This raises the drop shelves B B to place. Then push the lid F to place, and fasten with nuts taken oft.

Having thus described m v invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination, in a spark-extinguisber, of the shelves A A, B B, and U 0, con Strueted and arranged to receive and discharge exhaust Steam or water, in the manner and for the purpose hereinbefore set forth.

2. The combination, in a spark-extinguisher, of the shelves AA,B B, andC U, and the independent port 0!, having perforations, constructed and arranged to operate substantially in the manner and for the purpose hereinbefore set forth.

3. The combination, in a sparkextinguisher, of the drop-shelves B 1% and the ports 1) I), provided with perforations, constructed and arranged in the manner and for the purpose hereinbefore set forth.

4. The combination, in a spark-extinguisher,

of the incline'shclves A A, lower shelf or shelves, 0 0, cover G, and the front lid, F, constructed and arranged to operate in the manner and for the purpose hereinbefore set forth.

5. The combination, in a spark-extinguisher, of the shelves B B and arm-projections b b, constructed and arranged to operate in the manner and for the purpose hereinbefore set forth.

6. The combination, in a spark-extinguisher, of the valve E and the ports D D D, constructed and arranged to operate in the manncr and for the purpose hereinbefore set forth.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in presence of two witnesses.

GEO. D. HUNTER.

Witnesses WALTER E. WooImURN, NAT. U. HILL. 

